Home / 11,287.29-15,575.86-6,251.11

Finding the Fourth Proportional to 11,287.29, 15,575.86 and 6,251.11

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Solution

The fourth proportional to 11,287.29, 15,575.86 and 6,251.11 is: 8,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.29 : 15,575.86 = 6,251.11 : x
  2. Step 2: Convert to fraction form
    11,287.29/15,575.86 = 6,251.11/x
  3. Step 3: Cross multiply
    11,287.29x = 15,575.86 × 6,251.11
  4. Step 4: Simplify right side
    11,287.29x = 97,366,414.20
  5. Step 5: Solve for x
    x = 97,366,414.20/11,287.29
  6. Step 6: Final answer
    x = 8,626.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.